Collapsible core



A. ADAMSON.

COLLAPSIBLE CORE. I

APPLICATION FILED um. 1. m5. RENEWED m. 21,4916.

1,177,755. Patented Apr.4,1916.

ALEXANDER ADAMSON, or AKRON, OHIO.

GOLLAPSIBLE CORE.

Specificationof Letters Patent. 7 Patented Apr; 4, 1916 Application filed January 7, 1915, Serial No. 974. Renewed February 21, 1916. sesame. 79,797.

To all whom it may concern:

Be it known thatI, ALEXANDER Anausov,

collapsible cores for the manufaeture oftire slices or-casings of double tube-pneu- 111211110 tires and the primary ob ect of the invention resides in the means employed for holding. and locking the sections of the core body: in assembled. relation, said means being effectual for the purpose, easily applied to permit the ready assembling ,Ofthe core and capable; of being moved quickly circumferentially of the core body to permit the collapsing of the same.

\Vith the foregoing and other objects in view, theinvention consists in the novel construction, combination and arrangement of parts constituting the invention to be hereinafter specifically described and illus- 2'5"'=t'i ated in the accompanying drawings which form part hereof wherein is shown the preferred embed ment of the invent on, but it is to be understood that changes, variatio-ns and modifications can be resorted to In the drawings in which similar reference numerals ind cate-like parts in the diferent figures, Figure 1, is aplan view of'a core assembled embodying this invention; and, Fig. 2 is a transverse sectional view on line X, X of'Fig. 1. g

' A ring core embodying this invention is customarily constructed of a plurality of segment-shaped sections which when united together as hereinafter described, constitute an annulus, the outer and lateral faces of which are shaped to imp'arta preferred configuration to the corresponding inner face of the-tireor tire shoe whichis to be manufactured thereon. g

7 The sections which are employed to form theannular oore'a're designated in the drawings by the reference numerals l, 2, 3 and 4 and are each provided with inwardly-extending flanges 5. These flanges are all similar. and are provided on their inner jlateral faces with laterally-projecting ribs '6 connected with the flanges 5 by inclined shoulders 7. The members -1 and 4 are provided at the ends thereof with projecting ribs 8 and the ends of the members 2 and};

are p'ro'videdwith complementary grooves 9 .into which the ribs" are adapted to engage for effecting complete registration between the several parts of the core when assembled;

The junction lines 10 between theends of the section 1 and the sections 2 and 3 are so inclined that the member 1 is substantially wedge-shaped toconstitute a key member. The joints between the sections 2, 3 .anda

are approximately radial with respect to the assembled core; a I

The means employedin this invention for holding various sections in assembled .relation to constitute an annular core body com prise a pair ofclamping members adapted to overlap the abutting ends of the flange of various sections for holding them in -com-' plete registration and as the means eniployed at each ]01nt areidentical a description ofone set is believed to be suflici'ent for the understanding of all. [Each offense clamping means embodiesa member. 11 of sufficient length to overlap a "considerable portion of the. flanges of abutt'ing sections and provided on the face which opposes the core with an 1nwardly+eXjtendingrib 12 p' i 'ovided with one inclined edge "13fwhic'l1jis adapted to engageone inclined shoiilder 7. The member is further provided with a longitudinally-extending groove 14L which. freely receives the rib 6f of 'the flange. The

inner portion of the memberll is' with an aperture 15. The comp'anion mom ber 16 of the clamp is provided on the face which opposes the core body with .anj1inwardlyrprojecting rib 17 having 'one'fin: A

clined edge118 to co-act with; the shoulder? of one rib 6 and is further provided wit-11a groove 19 to receive one rib 6. The inner portion of the member 16 is provided with a threaded aperture 20 arranged in alinement with the aperture 15. Positioned in the alined apertures is a cap-screw 21 constitutjing' means for clamping the two members 11 and 16 against the side face of the ribs 6 of theflanges 5 The core is assembled by placmg the various sections in assembled relation and then positioning the clampingmembers 11 and" 16 so that they overlap the oints between contiguous sections and 'by tightening the cap screws 21 .the' sections are held in perfect circilmferential alinement.

When it is desired to dismantle the core the cap-screws are loosened sufiiciently to permit the clamping device to be shifted cirscrevtrs'suiiici'entlgr to he slidsaway enmfereiitia lly a wa frem the jointsiii the sections as intimate 1n dotted hues m Fig.

1 and designated by the reference numeral 22,-;so that it is not necessary to eiitirelyremove thoclamELbut only to -remove the to permit these members I "the jcoremay be collapsed in the ordinary :{manner now employed with .reter'enee to ljco'res' of this general type. a It will be obviiousth'at instead of a "cap screw 21 an ordie *wn arybolt may be employed and in suchv-fease's the aperture 20 is not threaded but extends entirely through themember 16; i i Y v 13A collapsi "of tire' shoes"0r casings comprising a series {of segment-shaped sections adapted to be I 1 assembled into a circular core with their 20i ends abutting against each other andeach isection formed with an-inwardly-extending ff-flange, "and'ai pziir of clamping members app1i e'd to opposite sides of the flanges of the core sections at the joints between'said' sec,-

tions,said clamping members comprising a,

air of members "with their inner .faces iiash'ioned to conform to the shape of the' sides of the flauge'si contiguou sections and oi-s'ufieient length to overlgp aid ends, andlmeahejeonneeted with said clamping means 01 drawing" them toward each other 1; clamping the sections aseembled relation said clam ing means arranged when ooeened to permitthe circumferential shifting of. the clamping members on the core flanges away from. theqoints between, see= time to allow of the collapsing of the core.

2. A collapsible core for the rnanufacture of shoes or casings comprising a series of ental shaped sections adapted to be .amem led into a" circular core with their ends abutting against each other and each section formed with an inwardly extending flange, said flan es provided on opposite sides with latera and eircumferentially-extending ribeya -pair of clamping members provided on their inner opposing faces with x cm thejoints after whichv blef core for the "nianufacture grooves to receit e said ribs and interlock therewith, said clamping members arranged to be applied to'the flanges of the core at the joints between contiguous sections and of 'siiflicient length to overlap portions of ttheiends f the flanges, endows-extending in said% elam ink-members for drawing them toward eacli of the sections andhold them in assembled other to clamp the flanges,

relation saidmeans arranged when slightly loosene to permit the circumferential shifting of -the olampin members circumferentiall'y at the core 063" to-permit the eollapsi ngof the core. K l 3. Aeollapsible core for the manufacture oftire-shoes or casings comprising a series of segment-shaped eeetiona adapted to be assembled into a eireular core with their ends butting agai st'eaeh other, said section provided with V inwardly-extending flanges, said flanges provided with lateral outer ed es of said ribs being inclined; a pair e f-clamping members adapted to be and oircumferentiallj extentling ribs, the

applied to and overlan opposite faces of the e contiguous ends of; said flanges, eaidelampe ing members provided with longitudinally extending groores to rece ve said ribs, one of the walls of each of said grooves inclined to co-act with the inclined edgesof said ribs, clamping means extending in the clamping members for drawing them toward each other for clamping" the sections to gather into annular formation, said clamp 

